Forster has been in outstanding form since returning from a long-term injury absence in January and there has also been interest from other clubs in securing his services.

But Southampton have now convinced the 28-year-old England international that his long-term future lies with the south coast club.

He told the club’s official website: “I’m delighted. It’s been another good year for the club and I think there’s real ambition around the place and it’s good to be a part of it, so to commit and sign a new deal is unbelievable and I’m just looking forward to getting stated again.

“Every player wants to keep moving forward in their career and for me especially I’m very ambitious, and I think at this club there is that real ambition and desire to keep moving forward and improve year-in, year-out.

Midfielder James Ward-Prowse has also signed a new six-year contract with the Saints.

The England Under-21 international has emerged as a key man for the club after progressing through their academy system.

Since making his senior debut in October 2011, Ward-Prowse has made over 100 appearances for the club.

He said of his new deal: “I’m delighted. When I knew I had the chance to extend my stay here it was a no-brainer for me.

“It’s pleasing that the club have shown that they have faith in me to extend my stay and I want to repay the faith to the club for putting their time and effort into making me the player I am today.”